Sweep & inspection
Caps & crowns
Flue relining
Masonry repair
Gas fireplace serviceLevel 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
Fast, Reliable Chimney Sweep Across Union City
A chimney sweep in Union City typically costs between $189 and $349 for a standard fireplace cleaning with a Level 1 inspection, and most jobs are completed the same day we arrive. That price covers creosote removal, soot cleanup, and a basic safety check of your fireplace and flue. If you live in the older Decoto district or the newer townhome tracts off Mission Boulevard, the condition of your chimney depends heavily on which side of Union City you call home.
We know the difference because we work both sides every week. Chimney Cleaning Fremont has served Union City homeowners since 2011, and our chimney sweep team understands how a 1950s brick fireplace near Decoto behaves differently from a factory-built metal flue in a 94587 townhome. Call (844) 980-4364 for a free estimate. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Why Union City Homeowners Call Chimney Cleaning Fremont for Chimney Sweep
Our reputation in Union City comes from one thing: we show homeowners what is actually happening inside their chimney before recommending any work. Raul Escobar built this company on a simple rule. Camera evidence first, recommendations second. If a flue is fine, we say so. If it needs work, you see the photos and video with your own eyes.
Union City customers call us because we carry the right materials for both halves of this city. Masonry chimneys in the 94536 core need HeatShield ceramic resurfacing when flue tile cracks. Metal flues in 94587 townhomes need chase covers resealed and prefab vent terminations checked. Most sweep-only companies clean the flue and leave. We repair what others only report.
Our team knows the old Alvarado tract homes along Smith Street and the newer developments near Union Landing without needing to ask for directions. That local familiarity means we arrive ready to work, not ready to figure out where we are.
Styles & brands we work with
- Sweep & inspection
- Caps & crowns
- Flue relining
- Masonry repair
- Gas fireplace service
Chimney Maintenance in Union City
Chimney Maintenance in Union City is a year-round concern, not a fall-only chore. The climate here is mild, with wet winters and long dry summers. That pattern means water intrusion during the rainy season does most of the damage, while the dry months let birds and debris settle into flues that sit unused for half the year. A maintenance visit catches both problems before they turn into expensive repairs.
Annual Sweep and Inspection
A standard maintenance visit in Union City runs $189 to $279. We remove creosote and soot, check the flue for obstructions, and inspect the crown, flashing, and firebox. For older brick chimneys near Decoto, we pay close attention to mortar joints and shallow crowns that pool water.
Pre-Season Checkup
Before burning season starts, Union City homeowners should get their flue inspected even if they only use the fireplace a few times a year. A quick camera check takes about 30 minutes and tells you whether last winter’s rains did any damage behind the scenes.
Chimney Sweep Services in Union City
Chimney Sweep Services in Union City cover more than pushing a brush up the flue. We handle creosote removal, soot cleanup, fireplace cleaning, and both Level 1 and Level 2 inspections. The work changes depending on whether you are in a 1950s brick home near Decoto or a newer townhome near Union Landing.
Creosote and Soot Removal
Wood-burning fireplaces in Union City’s older homes build up creosote faster than homeowners expect, especially if the wood is not fully seasoned. A heavy buildup is a chimney fire waiting for a spark. Our sweep removes it and shows you the before-and-after photos so you know the flue is actually clean.

Level 2 Camera Inspection
When a chimney has been unused for years, or when a home is being sold, we run a Level 2 inspection with a camera that reaches the full length of the flue. This is the same inspection that catches cracked flue tile in Decoto brick chimneys and rusted metal flues in 94587 townhomes before they fail.

Trusted Brands We Service in Union City
We work exclusively with professional-grade chimney materials, not hardware-store substitutes. When a Union City chimney needs relining, we install HeatShield ceramic flue resurfacing, which bonds directly to the existing flue and restores it without demolition. For crown rebuilds and flashing work, we use Gelco and Olympia Chimney products, and Famco components for chase covers and vent terminations on metal flues. These are the same brands certified chimney specialists nationwide rely on, and we keep common parts stocked so Union City jobs move faster than waiting on a special order.
See the difference
Before
After
Before
After
Before
AfterCommon Chimney Sweep Problems We See in Union City Homes
- Cracked flue tile in Decoto brick chimneys. The original clay tiles in 1950s and 1960s homes crack after decades of heating and cooling. A camera inspection shows the damage before a chimney fire or carbon monoxide leak forces the issue.
- Shallow crowns pooling water. Union City’s older Eichler-era homes often have low, boxy brick chimneys with crowns that do not shed water properly. Within a few rainy seasons, the pooled water seeps into the masonry and causes spalling.
- Unsealed chase covers on 94587 townhomes. Factory-built metal flues need their chase covers inspected and resealed periodically. Rain gets in, rusts the metal flue, and creates draft problems that make gas fireplaces perform poorly.
- Bird and debris buildup during dry months. Union City’s long dry summers leave flues sitting unused, and birds find them inviting. Nests and debris block airflow and create a fire hazard the first time you light the fireplace in fall.
Pricing for Chimney Sweep in Union City, CA
A standard chimney sweep in Union City runs $189 to $349 depending on the fireplace type and how much creosote has built up. Wood-burning fireplaces with heavy buildup land on the higher end, while a gas fireplace cleaning with a Level 1 inspection typically stays under $250. A Level 2 camera inspection adds $150 to $250 and is worth it for older Decoto homes or any chimney that has not been checked in years. Liners, crown rebuilds, and chase cover work are priced per job by the written estimate. The estimate is free, and nothing is recommended without camera evidence you can see yourself. Call (844) 980-4364 and we will give you exact pricing after seeing your chimney.
We Also Serve Cities Near Union City
Our team covers Union City and the surrounding East Bay. We work regularly in Newark, Fremont, Hayward, and Castro Valley, so if you are on the edge of Union City or just across a city line, we can still get to you quickly. Same pricing, same camera-first approach, same professional-grade materials.
Serving Union City, CA – Our Local Coverage Area
We serve Union City and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs About Chimney Sweep in Union City
Not necessarily. Many 1950s brick chimneys in Union City were built with clay tile liners, and those liners may still be in good shape. You need a liner if a camera inspection shows cracked flue tile, missing mortar joints, or if you are venting a newer gas appliance through a flue that was never designed for it. We do not recommend a liner without showing you the camera footage first. Call (844) 980-4364 to schedule an inspection.
The 94536 side of Union City is mostly older single-story homes with original masonry chimneys and clay tile flues, while 94587 is dominated by newer townhomes with factory-built metal flues. Masonry work in 94536 involves mortar repair, crown rebuilding, and sometimes HeatShield relining. Metal flue work in 94587 is mostly inspection, chase cover sealing, and vent termination checks. A technician can often tell which ZIP he is in from the roofline alone.
Once a year, even if you only use your fireplace a few times each winter. Union City’s wet winters put stress on crowns and flashing, and the dry summers invite birds and debris into unused flues. An annual inspection catches the damage before it becomes a fire hazard or a water leak inside your walls.
Yes, and we will not recommend repairs without doing exactly that. Our Level 2 inspection includes a camera feed that shows you the inside of your flue, the smoke chamber, and the crown from above. If we find cracked tile, deteriorated mortar, or creosote buildup, you will see it on the screen and we will walk you through what it means. If the flue is clean and sound, you will see that too, and we will tell you nothing needs to be done.
Chase covers on factory-built metal flues need to be inspected every year and resealed when the caulking or fasteners start to fail. Rain water gets through unsealed covers and rusts the metal flue inside, which leads to draft problems and eventually replacement. This is a quick repair most sweep-only companies skip because they are not looking at the chase at all.
Call (844) 980-4364 for a free estimate on chimney sweeping, inspection, or repair in Union City. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Written by Raul Escobar, Owner at Chimney Cleaning Fremont, serving Union City since 2011.